Boring bar tool

Abstract

A boring bar tool for use with a tip is disclosed which has a tool body. The tip is mounted to one side of a forward end of the nose of the tool body. A neck is formed at a proximal end of the nose, and a shank in the form of a shaft is formed at a proximal end of the neck. The neck has a cross-sectional area in a plane perpendicular to an axis of the shank which is larger than the cross-sectional area of the shank in the plane.

What is claimed is: 
     
       1. A boring bar tool for use with a tip, said boring bar tool having a tool body which comprises: a nose, said tip being mounted to one side of a forward end of said nose;   a neck formed at a proximal end of said nose; and   a shank in the form of a shaft formed at a proximal end of said neck,   wherein said neck is formed into a shaft-like configuration in which the cross-sectional area of said neck in a plane perpendicular to said axis of said shank is gradually reduced within such a range as not to become less than the cross-sectional area of said shank in said plane as the proximal end of said neck is approached from a forward end thereof, and in which a flank is formed on an outer periphery of said neck contiguous to said tip, said flank approaching said axis of said shank as it approaches the proximal end of said neck from the forward end thereof.